Zeon Corporation

The principal uses of ECO ate in automotive appHcations, eg, for fuel line and fuel vapor recirculation. There ate also some downhole seal appHcations where ECO is used. About 7000 t/yr of epichl orohydrin ate used in the United States. This is aU suppHed by the Zeon Corporation. 

S.L. Mukerjee and V.L. Kyllingstad, Ring-opening metathesis polymerization (romp) of cyclo-olefins with molybdenum catalysts, US Patent 6433 113, assigned to Zeon Corporation (Tokyo, JP), August 13, 2002. 

WEST PHARMACEUTICAL SERVICES INC WESTLAKE CHEMICAL CORPORATION WINPAK LTD WR GRACE CO ZEON CORPORATION... 

ZEON Corporation, Yako 1-2-1, Kawasaki, 210-9507, Japan h.mori zeon.co.jp... 

This report introdnces BM-400B and BM-500B, which Zeon Corporation has developed as SBR binder for negative electrodes and ACM binder for positive electrodes, respectively. SBR and ACM binders are very different from PVDF binder in their usage. Once accnstomed to the nse of PVDF, it becomes difficult to make electrode paint when switching from PVDF to SBR or ACM. Therefore, this report also describes in detail how to use SBR and ACM binders. 

Table 7.2 Binders developed by Zeon Corporation. Reproduced by permission of CMC Publishing Co. Ltd...

We do not know how battery manufacturers actually produce electrode paints. The utilization method of the BM-400B binder developed by Zeon Corporation is described next. 

It is recommended to review beforehand the conditions needed to disperse the active material and to obtain a good flowability. The following is an easy method developed by Zeon Corporation. 

Recently Zeon Corporation has developed BM-500B as a binder for positive electrodes in which ACM fine particles are dispersed in NMP. This binder satisfies the tough conditions mentioned above. 

Since BM-500B is a particle dispersion type, it does not increase the viscosity of the solution, and when used exclusively provides insufficient properties for paint. Therefore, it is important to employ a thickener such as the CMC used with BM-400B for negative electrodes. Zeon Corporation has been developing various thickeners for positive electrodes depending on the types of the active material. The details are not described here due to lack of space. 

Zeon Corporation ZECO Nipol Japan, Kawasaki... 

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